Oil-temperature regulator



R. B. BEISEL on. TEMPERATURE REGULATOR Filed Nov'. 12, 1923 Feb.- 15,1927. 1,617,433

VPaterated Feb.' 15,1927. l

A 111,617,433 i' UNITED STATES PATENT- oFFflcE.,

nEx B. EEIsEL, 0E GARDEN cITY; NEwvonx, AssreNon 'ro cUE'rI'ss AEnoELANE AND Moron. co., ING., 0E GARDEN crrY, LoNe ISLAND, NEW YORK, A-conPonATIoN or NEW YORK.

Application led November My invention relates to oil temperaturel stricted oil passage, has associated with it al check v-alve. This valve, due to the pressure in the oil circuit acts automatically to open and close the..unrestricted oil passage.. Preferably the unrestricted oil passage, or bypass, is so related to the restricted or normal oil passage as to admit of an interchange of heat. Accordingly, the heated oil in the unrestricted loil passage, by reasonof such heat transmission, is instrumental in promoting the circulation of the viscous oil in the restricted or normal passage. An oil temperature regulator thus characterized is especially useful as' an internal combustion motor accessory. By interposing the oil temperature regulator in the oiling circuit of the motor the temperature condition of the oil or lubricant is at all times maintained at that temperature deemed most eiiicient for motor lubrication. .Other objects,I advantages and improved results willbe apparent from the following. In the drawings, wherein, like reference characters denote like or corresponding Pl'f's,

r4 ator, partly shown in,trans verse verticonnection wi ca section, and

- Fig. 2' is a sectionV on the line 2-2 of llle oil temperature regulator, while especially motor accesso is nevertheless useful in other types of heat generating-power plantsin which oil is circulated under pressure for lubrication purposes.v Itis intended, inV the preferred embodiment of the invention, that the 'oil temperature regulatnr, in its entirety as 10, shall be appropriately connected-upland made to form a part of the oil circuit of the power Fig. 1 is a face view of the oil temperature useful as an. internal combustion.

OIL-TM-PERATURE- REGULATOR.

12, 1923. Serial No. 674,417.v

plant 'connection `with which itl-is used.

are fastened, said structures being preferably of standard form, i. e., made up of a plurality of4 hex-end copper tubes 13, through which the cooling medium is adapted to flow. These cellular structures 12l properly encased and proportioned, consti-` tute what I prefer to designate as the normal oil passage of the oil temperature regusaid normal oil assa-Ue is a ro riatel battled or restricted. v b pp y The oil in its circulation enters the restricted oil passage through a Y-end oil duct '13 open at its branched end to the shell or casing. 11, within which thel cellular struclator. By reason of its cellular form, the

tures 12 are encased. Normally the oil due to its heated condition, flows 'down through the cellular structures 12 to points of dischargle at the bottom of the casing, from whlc point the oil is led through a base duct 14 and side ducts 15 to return pipes 16 leadi ing back to the power plant or motor in co nection with Whichthe oil temperature regulator is used. Preferably, the oil ducts 14 and 15 enten-d the full width of the casing 11 andthroughout thebottom and side 'walls thereof lie contiguous to andin thermal contact with the corresponding walls of the cellular structures 12. Thusorganized, the ydesired interchange of heat between the cellular structures and the said ducts 14v 4 and 15 is established. So much for the flow of oil in its heatedor hl fluid condition. In addition to the cell ar structures 12 which constitute the normal or' restricted oil passage within the oil tem erature reguator, saidfregulator is provi edwith a centrally disposed vertical oilduct 17, which I. shall hereinafter refer to as an unrestricted oil passage. This passage 17, under normal L operating conditions is closed at its upper end by a check valve 18 spring pressed 'as at 19 against asuitable valve seat 20. Said valve 18 operates automatically. Should the oilin circulation due to its cease to flow thro h the cellular structures 12, the valve 18,]l1e to the pressure in the oil Aline will automaticall open, whereupon theA oil free to enter e unrestricted passage -17 11o where its flow is unobstructed. The oil `in its flow through the unrestricted passage 17, which like the bottom and side ducts 15, extends the full Width of the casing, gradually raises thetemperature of the congealed oil in the cellular structures 12, and as the oil in its unrestricted ow becomes hotter and hotter, the congealed oil in the cellular structures becomes less viscous until finally, due to heatl radiation, flow isy established in the restricted passage. Flowthrough thc un restricted oil passage having-been thus established, the pressure onA the valve 18-falls off until the'spring 19 automatically closes the valve to @thereby preclude a continued flow .of/oil through the unrestricted oil passage 17. v

If desired, a baille 21 may be provided Within the unrestricted oil passage 17 to better distribute the oil therewithin. Moreover, to the end that the tension of the spring'19 may be adjusted, a disc 22 is adjustably mounted on the valve stein as a bearing surface for one end of said spring.

While I lhave described my invention in detail in its present preferred embodiment,

' it will be obvious to those skilled in the art cuit through which oil is circulated under pressure, a casing within said circuit, sepapassage.

after understanding my invention, that va'- rious changes and modifications may be made thereinwithout departing from the spirit or `scope thereof. v I aim in the appended claims to cover all such modifications 'and changes.

What isgblaimed is: 1. In arr oil .temperature regulator, a cirrate oil passages formed Within said casing, said separate passages being respectively restricted v and unrestricted, and a check valve for closing the. unrestricted oilz passage should the temperature condition of the `oil admit of its ow through said restricted .the oil preclude its flow through said restricted passage. n,

In an oil temperature regulator, -a circuit thru which oil 1s circulated under pressure, a casing witlin said circuit, separate oil'passages formed Within said casing, and a check yalve automatically operable under the influence of the pressure of the oil Within said circuit for directing the 110W` thereof thru one or the other of said passages according to the temperature condition and vviscosity of the oil.

4. In an oil temperature regulator, a cir- 'cuit through which oil is circulated under pressure, a radiator Within said circuit, a by-pass Within said circuit, and a check Valve normally closing said by-pass, said valve being operable automatically under`the inluence of the oil pressure to by-pass tlie'eoil around the radiator should its viscosity preclude its fiow therethru.

5. In an oil temperature-regulator, a. cir-' cuit through Whichoil is circulated under pressure, a radiator `Within said circuit, a

` 'by-passwithin said circuit, said bypass being in thermal contact with thewallsof the radiator to admit of an interchange of heat,

and a check valve :normallyfclo'sing said byf pass, said check being operable automatically under the influence of the oil pressure to bypass the oil around the radiator Should its ^viscosity preclude its flovv therethru.

In testimony whereof 1 hereunto atix Vmy signature.

REX B. BEISEL. 

